To anyone wanting to explain the difference between TOEFL and IELTS, this presentation might be of good use. This the 1st part of two presentation. It focuses on the TOEFL, while the second part discusses the IELTS.
12. 5. Computer Tutorials Not applicable A computer tutorial and instructions for answering questions are provided before the test Instructions for answering questions are given within each section; there is no computer tutorial PBT CBT IBT
13. 6. Computer Adaptive Not applicable Listening and Structure are computer adaptive. Reading and Writing are not. Not computer adaptive. Each test taker receives the same range of questions in any given form of the test. PBT CBT IBT
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18. 11. Structure (Grammar) 40 questions Time: 25 minutes 20-25 questions Time: 15-20 minutes Score combined with Writing section No grammar section, although grammar is evaluated in Speaking and Writing responses. PBT CBT IBT